1 files changed, 12 insertions, 0 deletions

diff --git a/case_lowers.c b/case_lowers.c
new file mode 100644
index 0000000..208b3f5
--- /dev/null
+++ b/case_lowers.c
@@ -0,0 +1,12 @@
+#include "case.h"
+
+void case_lowers(s)
+char *s;
+{
+  unsigned char x;
+  while (x = *s) {
+    x -= 'A';
+    if (x <= 'Z' - 'A') *s = x + 'a';
+    ++s;
+  }
+}